Trolley wheel and harp.



PATENTED MAR. 5, 190?.

E. S.. ROLAND. TROLLEY WHEEL AND (HARP.

APPLICATION FILED OOTJQ. 1905.

INVENTOR.

^TTEST- y ATT? l-nNrrijn' STATES Parisi@ cierren,

j *EDwAnDjs ROLAND, or CLEvELAD, OHIO.:

TROLLEY WHEEL AND HARP.

No. 845,900. l

1 To @ZZ whozn trudy concern: l'

- ,Be it knownthat I, EDWARD ROLAND, a citizen of ,the lUnited States,- residing -at Cleveland, in the county oi Cuyahoga and State, of Ohio, have invented certain new and' useful Improvements inTI-'olley Wheels and Hanps and I do declare that the following is av full, clear, and exact'descri ton ofthe invention; which will enable ot ersl skilled in the art to. which it appertains to.' make and use the same.,

My invention relates to improvements in l trolley wheels 'and harps, and the improvem nt consists in "the construction: and arrangements of parts substantially' 'as hereinafter shown, andgmbre particularlypointed l 'outintheclaims i bodied in the'mean's for conveyingthe cur-- rentgcentrally through the wheel and-axis to the pole-andin the'separable construction of ,.ra'bleldevie' 3.'.5-

In the-accompanying drawings, Figre 1 is The object of my improved device is em the wheel,"as well as in other details'lof `nstructionfadapted to make a simple andatua side elevation of. my improved wheel and 'harp withT-a portion ci the trolley-pole therefor. Figil 2 isa central longitudinals'ection on line :1; rc, Fig. 1. Fig.` 3 1s across-section on line y y, Fig. 1, of the harp, showing the recessed portion therein for the locking'conduc "tor-wire. Fig. 4 is a sectionalfview of the three separable elements comprising the trolley-Weel' detached from each other.

Fig. 5 is a "side elevation of the central member of the trolley-wheel and a cross-section of concave-Connex disks with central hubs andy are reverselymounted upon-opposite sides of. member 4 and are preferably made of cast.

iron and provided with steel bushings 5.

' Central Wheel member 4 has a ooncaved peripheral surface and is oflless diameter than members 2" and' 3- and has integral proJectlons 6 at each-side, adapted to enteropenings 7 in the side members. Projections 6 are struckV 1p at their outer ends to rivet and lock said parts together. Central member 4'hasa` centralopen body adapted to provideoilscham- Specification of Letters Patent.v Application med october 19.

Patented March 5, 1907.` 1905. serials. 283,450.

bers 8. between arms 9, vwhich connectiouter rim 10 with hub 11, and arms 9 are grobyed .transversely onl 'their face at 12 to provide 'open communication between the chambers. A screw-plug 25 closes a filling-opening in side member 2. lRim 10 has' beveled side 'faces to correspond to the flaring portion of side -members 2 Aand 3. The greatest Wear upon the wheel. naturally v falls upon central member 4 because of its direct contact withthe trolley-wire and also -because it is preferably constructed of brass to. provide a good conductor for the electric current. Whenever central' member 4.is worn out, sides 2 placed therefor.

and 3 are lremoved and a new likemember reshaft B is preferably made' of brass, be.:

cause it also becomes 1a conductor for the current, and when castafpair of steel-bushing-l rings 14 are cast thereontoencircle reduced portions 15 `on said shaft and which when vin i place within wheelf'arefadapted t`o-lie oiip site and within bushings 5 of the'wheel. A suitable irregular-shaped spring 1 6, of brass, is inserted between bushings 5 vand is' adapted to bear against the inner wall of'hub lfand also against shaft B at a point between the .two bearngLrings A14. "Spring 16 has free ends and is formed to contact with the shaft and'me'mber 4at different radial places',- so. that a good current-conductor is alwaysfto shaft B. A l

The means for holding` shaft B Within the ends of arms 17 -of harp C comprises a pair of be had'between rotating member'4 and fixedy locking-wires 18, one at'each side of' the harp,

vthe upper ends of which are adapted to enter B. Wires 18 are preferably ofbrass'to rovide good conductors for the current,'an the recess 20 at or near the bottom of cach arm 17, and said wires also lie ina vertical grooved ortion 22 of sides 17. "To remove the whee from the harp, it is only necessary to bend wires'18 outward and withdraw them from their seats and' disenga e them from openings 19 in shaft B, there y permitting said shaft to be. movedjendwis from the har and Whel, and thus unmount the wheel.

en tral brass member 4 and brass lshaft B,

fwith brass contact-spring.- 16 between said. f parts, rovides a direct path for thecurrentrom t etrolley- Wire 'Le the ole without endangering the bearings for t e Wheel.

openings 19 in the side near the ends of shaft lower ends thereof are seated in a. pocket or IOO advantage'of my improvdcon- 5 The oil within'chambers 8 seeps down bestruction is in its 'separable construction;I whereby when one part or another becomes worn a new part may be readily substituted and the remaining good parts again used.

'tween side members 2 and 3 and hub :11 and iills the circular ch amber within which spring 16 is confined and with which the` bearing- .bushings are in open relation, thereby lubrixo eating all the wearing-points between the wheel A, spring 16, and shaft B. Vhen y 'bushings 5 become worn, the)r can be driven from their seat and replaced. v

Obviously the wheel may be solid; but af x 5 sectional wheel is preferred, and Aparticularly `one having the novel construction h'erein shown and described` What I claim is;` l.'A'tro11ey-w\rheel.having a central cnrz'o rent-conducting member, separate side mem- 'bers between which said central member is mounted, separateV bushings 'for said side members terminating'at said vcentral inember, a current-'conducting shaft having separate bearing-rings within said bushings,'and a harp adapted to 'support `sa.i( i'shat-A and wheel. vj 2, A trolley-wheel having separate sides and abushing within each side, aA shaft for jo said wheel having separate.v bearing-rings over which said bushings are sleeved, a current-conducting contact member for saidA wheel and shaft between sind sides and a conductor .wit-hin the same adapted toeon- .tact with said shaft and said contact member '.atdifferent oints about the shaft, and a`support for sai shaft and wheel. 3. -The eombinationof'a trolley-wheel comprising a central member and separable side members, with a shaft having bearing-bushings for the said side members, a contactl spring forsaid central member and said s aft, and a harp adapted to support said shaft and wheel.

4. The combination of a trolley-wheel cornprising a central member and separable side members, with a shaft and separate steel bushing members for said shaft and said side wheel members, a contact member for said central wheel member andsaid shaft,`a harp adapted to su port said shaft and wheel, and

locking mem ers between said shaft and harp. Y

5. Thecombination of a trolley-Wheel comprising a central member having side locking projections and side members having open ings adapted to receive said locking projections, in combination with a shaft and harp adapted to support said wheel, anda spring within said central member construetedto Contact therewith and with said shaft at dit# terent radial positions at intervals about the shaft.

v6. A trolley-wheel comprising` .a centrali. i

In testimony 'whereof Isign this specification in the'prescnce of two witnesses.

- EDWARD s. ROLAND.; Witnesses: i l

y C. A. SELL,

A.' W. MOSER, 

